@marcan42 when I exploited the Vita, one popular gaming site: "Hackers, known recently for hacking PSN, now have the Vita hacked"
"identified weaknesses in the PlayStation 4's GPU" No, we identified bugs. Bugs that make me tear my hair out when porting the driver.
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@libcg The NOP thing, sure. The part where SDMA writes are offset by 4 dwords in the ring seems to be PS4-exclusive madness.Thanks. Twitter will use this to make your timeline better. UndoUndo
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@libcg SDMA ring test fails, dump the target buffer, see that 0 gets written instead of 0xdeadbeef... add more commands, now it writes 1... -
@libcg then I realized that 1 was the length field of the packet after the original write packet, 4 dwords later in the buffer. - Show replies
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@libcg I'm not aware of any docs for the SDMA engine, I just had to read the driver code and guess.Thanks. Twitter will use this to make your timeline better. UndoUndo
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